def __init__(self, parent=None, items=7):
QtGui.QWidget.__init__(self, parent)
self.window_width = 600
self.window_height = 300
self.scrollbar_offset = 20
self.setGeometry(100, 100, self.window_width, self.window_height)
self.setFixedSize(self.window_width + self.scrollbar_offset,
self.window_height)
self.setWindowTitle('Your Scrollbar Helper')
self.last_timestamp = None
self.threshold = 600
s1 = (u"Am Anfang wurde das Universum erschaffen. "
u"Das machte viele Leute sehr wütend und wurde allenthalben "
u"als Schritt in die falsche Richtung angesehen.")
s2 = (u"Der beste Drink, den es gibt, ist der "
u"pangalaktische Donnergurgler. Die Wirkung ist so, "
u"als werde einem mit einem riesigen Goldbarren, "
u"der in Zitronenscheiben gehüllt ist, das Gehirn "
u"aus dem Kopf gedroschen.")
self.placeholders = [s1, s2]
self.setMouseTracking(True)
self.setContentsMargins(0, 0, 0, 0)
self.scene = QtGui.QGraphicsScene()
self.scene.setSceneRect(0, 0, self.window_width, 700)
self.view = QtGui.QGraphicsView(self.scene)
self.scroll_bar = MyScrollbar(self)
self.view.setVerticalScrollBar(self.scroll_bar)
self.view.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.connect(self.scroll_bar, QtCore.SIGNAL("sliderPressed()"),
self.sliderPressed)
self.connect(self.scroll_bar, QtCore.SIGNAL("valueChanged(int)"),
self.sliderPositionChanged)
self.panel = QtGui.QGraphicsWidget()
self.scene.addItem(self.panel)
box_layout = QtGui.QVBoxLayout()
box_layout.setContentsMargins(0, 0, 0, 0)
box_layout.setSpacing(0)
inline_box = QtGui.QGraphicsLinearLayout(QtCore.Qt.Vertical)
inline_box.setContentsMargins(10, 10, 10, 10)
inline_box.setSpacing(0)
self.panel.setLayout(inline_box)
font = QtGui.QFont('White Rabbit')
font.setPointSize(12)
for i in range(0, items):
text_passage = MyTextPassage(
self.placeholders[randint(0,
len(self.placeholders) - 1)],
"#" + str(i + 1), self.window_width, font)
inline_box.addItem(text_passage)
self.scene.setSceneRect(0, 0, self.window_width,
(i + 1) * text_passage.label_height)
self.update()
box_layout.addWidget(self.view)
self.setLayout(box_layout)
def __init__(self, parent=None, items=7):
QtGui.QWidget.__init__(self, parent)
self.window_width = 600
self.window_height = 300
self.scrollbar_offset = 20
self.setGeometry(
100, 100, self.window_width,
self.window_height)
self.setFixedSize(
self.window_width + self.scrollbar_offset,
self.window_height)
self.setWindowTitle('Your Scrollbar Helper')
self.last_timestamp = None
self.threshold = 600
s1 = (
u"Am Anfang wurde das Universum erschaffen. "
u"Das machte viele Leute sehr wütend und wurde allenthalben "
u"als Schritt in die falsche Richtung angesehen."
)
s2 = (
u"Der beste Drink, den es gibt, ist der "
u"pangalaktische Donnergurgler. Die Wirkung ist so, "
u"als werde einem mit einem riesigen Goldbarren, "
u"der in Zitronenscheiben gehüllt ist, das Gehirn "
u"aus dem Kopf gedroschen."
)
self.placeholders = [s1, s2]
self.setMouseTracking(True)
self.setContentsMargins(0, 0, 0, 0)
self.scene = QtGui.QGraphicsScene()
self.scene.setSceneRect(0, 0, self.window_width, 700)
self.view = QtGui.QGraphicsView(self.scene)
self.scroll_bar = MyScrollbar(self)
self.view.setVerticalScrollBar(self.scroll_bar)
self.view.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.connect(self.scroll_bar, QtCore.SIGNAL(
"sliderPressed()"), self.sliderPressed)
self.connect(self.scroll_bar, QtCore.SIGNAL(
"valueChanged(int)"), self.sliderPositionChanged)
self.panel = QtGui.QGraphicsWidget()
self.scene.addItem(self.panel)
box_layout = QtGui.QVBoxLayout()
box_layout.setContentsMargins(0, 0, 0, 0)
box_layout.setSpacing(0)
inline_box = QtGui.QGraphicsLinearLayout(QtCore.Qt.Vertical)
inline_box.setContentsMargins(10, 10, 10, 10)
inline_box.setSpacing(0)
self.panel.setLayout(inline_box)
font = QtGui.QFont('White Rabbit')
font.setPointSize(12)
for i in range(0, items):
text_passage = MyTextPassage(self.placeholders[randint(
0, len(self.placeholders) - 1)],
"#" + str(i + 1), self.window_width, font)
inline_box.addItem(text_passage)
self.scene.setSceneRect(
0, 0, self.window_width,
(i + 1) * text_passage.label_height)
self.update()
box_layout.addWidget(self.view)
self.setLayout(box_layout)
class Demo(QtGui.QWidget):
def __init__(self, parent=None, items=7):
QtGui.QWidget.__init__(self, parent)
self.window_width = 600
self.window_height = 300
self.scrollbar_offset = 20
self.setGeometry(100, 100, self.window_width, self.window_height)
self.setFixedSize(self.window_width + self.scrollbar_offset,
self.window_height)
self.setWindowTitle('Your Scrollbar Helper')
self.last_timestamp = None
self.threshold = 600
s1 = (u"Am Anfang wurde das Universum erschaffen. "
u"Das machte viele Leute sehr wütend und wurde allenthalben "
u"als Schritt in die falsche Richtung angesehen.")
s2 = (u"Der beste Drink, den es gibt, ist der "
u"pangalaktische Donnergurgler. Die Wirkung ist so, "
u"als werde einem mit einem riesigen Goldbarren, "
u"der in Zitronenscheiben gehüllt ist, das Gehirn "
u"aus dem Kopf gedroschen.")
self.placeholders = [s1, s2]
self.setMouseTracking(True)
self.setContentsMargins(0, 0, 0, 0)
self.scene = QtGui.QGraphicsScene()
self.scene.setSceneRect(0, 0, self.window_width, 700)
self.view = QtGui.QGraphicsView(self.scene)
self.scroll_bar = MyScrollbar(self)
self.view.setVerticalScrollBar(self.scroll_bar)
self.view.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.connect(self.scroll_bar, QtCore.SIGNAL("sliderPressed()"),
self.sliderPressed)
self.connect(self.scroll_bar, QtCore.SIGNAL("valueChanged(int)"),
self.sliderPositionChanged)
self.panel = QtGui.QGraphicsWidget()
self.scene.addItem(self.panel)
box_layout = QtGui.QVBoxLayout()
box_layout.setContentsMargins(0, 0, 0, 0)
box_layout.setSpacing(0)
inline_box = QtGui.QGraphicsLinearLayout(QtCore.Qt.Vertical)
inline_box.setContentsMargins(10, 10, 10, 10)
inline_box.setSpacing(0)
self.panel.setLayout(inline_box)
font = QtGui.QFont('White Rabbit')
font.setPointSize(12)
for i in range(0, items):
text_passage = MyTextPassage(
self.placeholders[randint(0,
len(self.placeholders) - 1)],
"#" + str(i + 1), self.window_width, font)
inline_box.addItem(text_passage)
self.scene.setSceneRect(0, 0, self.window_width,
(i + 1) * text_passage.label_height)
self.update()
box_layout.addWidget(self.view)
self.setLayout(box_layout)
def sliderPressed(self):
current_stamp = int(round(time.time() * 1000))
if self.last_timestamp is None:
self.last_timestamp = current_stamp
return
elif (current_stamp - self.last_timestamp) < self.threshold:
self.scroll_bar.setMarker()
self.update()
self.last_timestamp = None
return
else:
self.last_timestamp = current_stamp
def sliderPositionChanged(self, value):
self.scroll_bar.updatePosition(value)
def keyPressEvent(self, event):
key = event.key()
value = None
if key == QtCore.Qt.Key_Space:
value = self.scroll_bar.getNextMaker()
elif key == QtCore.Qt.Key_1:
value = self.scroll_bar.getNextMaker(1)
elif key == QtCore.Qt.Key_2:
value = self.scroll_bar.getNextMaker(2)
elif key == QtCore.Qt.Key_3:
value = self.scroll_bar.getNextMaker(3)
elif key == QtCore.Qt.Key_4:
value = self.scroll_bar.getNextMaker(4)
elif key == QtCore.Qt.Key_5:
value = self.scroll_bar.getNextMaker(5)
elif key == QtCore.Qt.Key_6:
value = self.scroll_bar.getNextMaker(6)
elif key == QtCore.Qt.Key_7:
value = self.scroll_bar.getNextMaker(7)
elif key == QtCore.Qt.Key_8:
value = self.scroll_bar.getNextMaker(8)
elif key == QtCore.Qt.Key_9:
value = self.scroll_bar.getNextMaker(9)
if value is not None:
self.scroll_bar.setValue(value)
def mousePressEvent(self, event):
if event.button() == QtCore.Qt.LeftButton:
absolute_pos = event.pos()
absolute_pos.setY(self.scroll_bar.value() + absolute_pos.y())
value = self.scroll_bar.isMarkerClicked(absolute_pos)
if value is not None:
self.scroll_bar.setValue(value)
class Demo(QtGui.QWidget):
def __init__(self, parent=None, items=7):
QtGui.QWidget.__init__(self, parent)
self.window_width = 600
self.window_height = 300
self.scrollbar_offset = 20
self.setGeometry(
100, 100, self.window_width,
self.window_height)
self.setFixedSize(
self.window_width + self.scrollbar_offset,
self.window_height)
self.setWindowTitle('Your Scrollbar Helper')
self.last_timestamp = None
self.threshold = 600
s1 = (
u"Am Anfang wurde das Universum erschaffen. "
u"Das machte viele Leute sehr wütend und wurde allenthalben "
u"als Schritt in die falsche Richtung angesehen."
)
s2 = (
u"Der beste Drink, den es gibt, ist der "
u"pangalaktische Donnergurgler. Die Wirkung ist so, "
u"als werde einem mit einem riesigen Goldbarren, "
u"der in Zitronenscheiben gehüllt ist, das Gehirn "
u"aus dem Kopf gedroschen."
)
self.placeholders = [s1, s2]
self.setMouseTracking(True)
self.setContentsMargins(0, 0, 0, 0)
self.scene = QtGui.QGraphicsScene()
self.scene.setSceneRect(0, 0, self.window_width, 700)
self.view = QtGui.QGraphicsView(self.scene)
self.scroll_bar = MyScrollbar(self)
self.view.setVerticalScrollBar(self.scroll_bar)
self.view.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.connect(self.scroll_bar, QtCore.SIGNAL(
"sliderPressed()"), self.sliderPressed)
self.connect(self.scroll_bar, QtCore.SIGNAL(
"valueChanged(int)"), self.sliderPositionChanged)
self.panel = QtGui.QGraphicsWidget()
self.scene.addItem(self.panel)
box_layout = QtGui.QVBoxLayout()
box_layout.setContentsMargins(0, 0, 0, 0)
box_layout.setSpacing(0)
inline_box = QtGui.QGraphicsLinearLayout(QtCore.Qt.Vertical)
inline_box.setContentsMargins(10, 10, 10, 10)
inline_box.setSpacing(0)
self.panel.setLayout(inline_box)
font = QtGui.QFont('White Rabbit')
font.setPointSize(12)
for i in range(0, items):
text_passage = MyTextPassage(self.placeholders[randint(
0, len(self.placeholders) - 1)],
"#" + str(i + 1), self.window_width, font)
inline_box.addItem(text_passage)
self.scene.setSceneRect(
0, 0, self.window_width,
(i + 1) * text_passage.label_height)
self.update()
box_layout.addWidget(self.view)
self.setLayout(box_layout)
def sliderPressed(self):
current_stamp = int(round(time.time() * 1000))
if self.last_timestamp is None:
self.last_timestamp = current_stamp
return
elif (current_stamp - self.last_timestamp) < self.threshold:
self.scroll_bar.setMarker()
self.update()
self.last_timestamp = None
return
else:
self.last_timestamp = current_stamp
def sliderPositionChanged(self, value):
self.scroll_bar.updatePosition(value)
def keyPressEvent(self, event):
key = event.key()
value = None
if key == QtCore.Qt.Key_Space:
value = self.scroll_bar.getNextMaker()
elif key == QtCore.Qt.Key_1:
value = self.scroll_bar.getNextMaker(1)
elif key == QtCore.Qt.Key_2:
value = self.scroll_bar.getNextMaker(2)
elif key == QtCore.Qt.Key_3:
value = self.scroll_bar.getNextMaker(3)
elif key == QtCore.Qt.Key_4:
value = self.scroll_bar.getNextMaker(4)
elif key == QtCore.Qt.Key_5:
value = self.scroll_bar.getNextMaker(5)
elif key == QtCore.Qt.Key_6:
value = self.scroll_bar.getNextMaker(6)
elif key == QtCore.Qt.Key_7:
value = self.scroll_bar.getNextMaker(7)
elif key == QtCore.Qt.Key_8:
value = self.scroll_bar.getNextMaker(8)
elif key == QtCore.Qt.Key_9:
value = self.scroll_bar.getNextMaker(9)
if value is not None:
self.scroll_bar.setValue(value)
def mousePressEvent(self, event):
if event.button() == QtCore.Qt.LeftButton:
absolute_pos = event.pos()
absolute_pos.setY(self.scroll_bar.value() + absolute_pos.y())
value = self.scroll_bar.isMarkerClicked(absolute_pos)
if value is not None:
self.scroll_bar.setValue(value)
